My skin tone looks so dull. Is there any treatment to brighten it up?

I am posting this because I am stressed about my skin tone these days.

My face looks much duller and more tired than before. Even after getting enough sleep, I lack vitality, and even when I apply makeup, it doesn't really seem to brighten up.

I don't have any blemishes or major pigmentation issues, but my overall tone feels uneven. It bothers me that my skin doesn't look clear whenever I look in the mirror.

I've tried using whitening and vitamin products, but it's not easy to use them consistently, and I don't really see any noticeable changes.

If anyone has received treatments to improve their skin tone, I am curious to know which methods were effective. I would also like to know if dermatological procedures are helpful, or if improving lifestyle habits is more important.

My goal is to have naturally clear and healthy-looking skin. If anyone has solved similar skin concerns, please share your experiences :)